Fingerprints long have been used to solve crimes. Now they’re being used to prevent crime, as well. Just like on TV and in the movies, new high-tech locks let you open doors any time you please without...

“Gunsmoke” made its television debut 1955. Back in the Old West six-shooters were home security until city slickers showed up with sturdy swinging doors fitted with locks and keys. Six-shooters were still a comforting backup until dead-bolt...